body {
    margin: 0;
    padding: 0;
}
a{
    color: black;
}
#myCarousel {
    margin-top: 50px;
    width: 100%;
}
#top{
    position: fixed;
    top: 0;
    height: 50px;
    width: 100%;
    z-index: 999;
}
#user_head{
    position: absolute;
    width: 100%;
    top: 10px;
    right: 10px;
    margin: auto;
}
#ad_left {
    background-image:none;
    background-repeat: repeat-x;
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#80000000', endColorstr='#00000000', GradientType=1);
}
#ad_right {
    left: auto; right: 0;
    background-image:none;
    background-repeat: repeat-x;
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#00000000', endColorstr='#80000000', GradientType=1);
}